fn reverse(pair: (i32, bool)) -> (bool, i32) {
    let (integer, boolean) = pair;
    (boolean, integer)
}

#[derive(Debug)]
struct Matrix(f32, f32, f32, f32);

use std::fmt;

impl fmt::Display for Matrix {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "({} {})\n({} {})", self.0, self.1, self.2, self.3)
    }
}

fn transpose(matrix: Matrix) -> Matrix {
    Matrix(matrix.0, matrix.2, matrix.1, matrix.3)
}

fn main() {
    let long_tuple = (1u8, 2u16, 3u32, 4u64, -1i8, -2i16, -3i32, -4i64, 0.1f32, 0.2f64, 'a', true);
    println!("long tuple first value: {}", long_tuple.0);
    println!("long tuple second value: {}", long_tuple.1);

    let tuple_of_tuples = ((1u8, 2u16, 2u32), (4u64, -1i8), -2i16);

    println!("tuple of tuples: {:?}", tuple_of_tuples);
    
    let pair = (1,true);
    println!("pair is {:?}", pair);

    println!("the reverse pair is {:?}", reverse(pair));

    println!("one element tuple: {:?}", (5u32,));
    println!("just an integer: {:?}", (5u32));

    let tuple = (1, "hello", 5.23, true);
    let (a,b,c,d) = tuple;
    println!("{:?}, {:?}, {:?}, {:?}", a,b,c,d);

    let matrix = Matrix(1.1, 2.2, 3.3, 4.4);
    println!("{}", matrix);

    
    println!("{}", transpose(matrix));
}

